> Markdown version of [/jobs/ext/1118801-senior-dotnet-developer](https://www.wearedevelopers.com/jobs/ext/1118801-senior-dotnet-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Dotnet Developer - **Company:** Gaydon - **Location:** Gaydon, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), .NET Framework, Software Bug Management, C Sharp (Programming Language), Visual Basic .NET (Programming Language), Software Engineering, Diagnostic Tools, Git, Information Technology, Software Version Control - **Published:** July 1, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/40488803/ ## About the Role Familiarity with vehicle diagnostics standards (UDS, CAN, DoIP, ODX). - Hands-on software development experience. - Experience working cross-functionally with multiple teams. - Proficient with Git or other version control systems. - Strong problem-solving and analytical skills. - Effective communication skills and ability to work collaboratively. Desirable: - Java development skills. - Prior experience working with diagnostic tools at an OEM or Tier 1 supplier. Qualifications Degree in Software Engineering, Computer Science, Automotive Engineering, or equivalent experience. Location & Working Pattern Hybrid working with a minimum of 3 days per week across Wellesbourne and Gaydon sites. Occasional travel to other company locations. Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government's Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who: Declare they have a disability, and Meet the minimum essential criteria for the role. Please opt in during the application process. ## Description Senior .Net Developer - C# / Java - Automotive Permanent - 3 days on site Gaydon £55,000 - £65,000 Team / Reporting Line Role Purpose To support the development, testing, and validation of diagnostic tools used in both dealer workshops and engineering environments. This role is essential to ensuring our diagnostic systems meet the highest standards of quality and reliability for current and future vehicle platforms. Key Responsibilities Support the development of the existing diagnostic toolset. Test diagnostic functionality and releases to ensure robust performance. Deliver bug fixes and implement improvements to current tools. Develop and validate future diagnostic tools and workflows. Process and analyse diagnostic data to support tool improvements. Conduct on-vehicle validation of diagnostic functions. Assist other departments (Integration, Engineering, Aftersales) with diagnostic-related issues. Skills & Experience Essential: - Strong experience with VB.NET and/or C#. - ## Related Videos - [Agile work at CARIAD – Creating a customer web application for controlling the vehicle ](https://www.wearedevelopers.com/videos/200-agile-work-at-cariad-creating-a-customer-web-application-for-controlling-the-vehicle) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [This Is Not Your Father's .NET](https://www.wearedevelopers.com/videos/967-this-is-not-your-father-s-net) - [Diagnostic Tooling: How to get insights from your .NET services hosted in Kubernetes containers?](https://www.wearedevelopers.com/videos/100188-diagnostic-tooling-how-to-get-insights-from-your-net-services-hosted-in-kubernetes-containers) - [Software stack under and over the hood of the fastest accelerating car in the world](https://www.wearedevelopers.com/videos/221-software-stack-under-and-over-the-hood-of-the-fastest-accelerating-car-in-the-world) - [Car's are Technology on Wheels - Impact of Software and IT Competence in Automotive](https://www.wearedevelopers.com/videos/780-car-s-are-technology-on-wheels-impact-of-software-and-it-competence-in-automotive) ## Related Articles - [How software is steering vehicle technology](https://www.wearedevelopers.com/magazine/515-how-software-is-steering-vehicle-technology) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools)